The cabin air filter in a 2019 Mazda3 sits behind the glove box on the passenger side. Access is gained by dropping the glove box and removing the filter housing cover to replace the filter.
Location and access
On the 2019 Mazda3, the filter is located inside a rectangular housing attached to the dash on the passenger side, just behind the glove box. To reach it, you’ll need to lower or drop the glove box, which typically involves releasing a couple of stops on the sides or detaching a small damper, then removing the cover on the filter housing.
What you’ll need
You typically don’t need any special tools. Have a replacement cabin air filter ready (preferably the Mazda-recommended or an activated charcoal variant if you want extra odor and pollutant control). If the glove box is stiff, a quick, gentle press on the sides will help release the stops.
Step-by-step replacement
Follow these steps to locate and replace the cabin air filter. This is a straightforward maintenance task that can be completed in about 10–15 minutes.
- Ensure the vehicle is off and the climate control is set to off. Open the glove box and remove lightweight items to give you space to work.
- Gently press in on the sides of the glove box or follow the model’s steps to release the glove box stops, allowing the box to drop down to about a 90-degree angle. In some trims you may need to disconnect the glove box damper.
- Look for the rectangular filter housing at the back of the glove box area and locate the cover or door that secures the cabin air filter.
- Open or unclip the filter cover. Remove the old filter, noting the orientation of the arrows printed on the filter.
- Insert the new filter with the arrows pointing toward the cabin interior (inward). Ensure it sits flat and fully seated in the housing.
- Replace the housing cover, reattach the glove box by lifting it back into place and securing the stops or damper, and close the glove box.
After completing the steps, re-engage the glove box and run the climate system briefly to confirm smooth airflow and proper fit.
Filter options and maintenance
Choosing the right filter
Most 2019 Mazda3 models use a standard cabin air filter, with an activated charcoal variant available from Mazda or aftermarket suppliers for improved odor and pollutant removal. If you drive in heavy traffic, dusty areas, or near wildfire smoke, charcoal or a premium filter is worth considering.
Replacement interval and tips
Mazda generally recommends inspecting or replacing the cabin air filter about every 12,000 to 15,000 miles (about 19,000 to 24,000 km) or once a year, whichever comes first. In dusty or harsh environments, you may want to replace it more often. When replacing, avoid forcing the filter into a misaligned position, and ensure the filter’s orientation arrows align with the housing arrows.
Summary: For a 2019 Mazda3, the cabin air filter lives behind the glove box on the passenger side. With the glove box lowered, you access a simple housing and cover to replace the filter. Use the correct replacement type, insert with the proper orientation, and reassemble the glove box to restore airflow and filtration.
Does a cabin air filter help with allergies?
Cabin air filters also help to reduce the amount of those allergens that can get into your vehicle. Pollen, dust and other allergens can build up in your filter during heavy pollen season, so you may need to change it sooner.
Why is the Mazda 3 so fast?
A sleek, aerodynamic design reduces drag, allowing the car to move faster and reach a higher top speed. Mazda has put a lot of effort into designing the 3 Hatchback to be as aerodynamic as possible. The tires also influence how fast the car can go.
Where is the cabin air filter located in a Mazda 3?
Real simple here open the passenger. Door right inside back behind the glove box all you have to do is open the glove. Box and you'll notice that you just squeeze each side of the glove. Box.
What engine oil is best for a Mazda 3?
SAE 5W-30
If you're driving a Mazda with a turbo engine, we strongly recommend SAE 5W-30. As for oil additives, you're more than welcome to use cleaner or booster additives. Just bear in mind that they can cause oil to thicken, which may lead to sluggish starts in the winter.